Duffel
YC S18London, GB · Founded 2017 · 55 employees · Hiring · 4 known investors
Duffel provides APIs and software infrastructure that enable companies to offer flights and hotel bookings to their customers. The platform is designed for travel sellers, including airlines, hospitality businesses, and travel platforms seeking to integrate travel commerce capabilities.
B2B MarketplacesConsumerSaaSTravel & HospitalityAirplanesB2BTravelAPITransportationUnited KingdomEuropePartly Remote
Founders & leadership· Y Combinator alumni (S18)
Duffel was founded in 2017 by Steve Domin.
Investors · 4
Founder mafia
3 people who came through Duffel went on to found or lead other companies.
Competitors · 5
by search overlapKayak Software Corporation217 shared keywordsKayak is a travel search and comparison platform that aggregates flight, hotel, and other travel options from multiple providers to help users find and book travel deals.
Ctrip (NASDAQ: TCOM)201 shared keywordsTrip.com is an international online travel service provider offering hotel and flight bookings across a network of over 1.7 million hotels and 600+ airlines, available in 24 languages and 35 currencies across 39 countries and regions. It provides multilingual customer support to travelers worldwide.
Cheapflights99 shared keywordsCheapflights is a travel comparison website that lets users search and compare prices for flights, hotels, and car rentals from multiple airlines, hotel chains, and rental companies side by side. It serves consumer travelers planning domestic and international trips.
Going89 shared keywordsGoing (formerly Scott's Cheap Flights) is a flight-deal alert service that notifies members of discounted airfare to destinations worldwide. Founded in 2013, it serves more than 2 million travelers.
Travelport87 shared keywordsTravelport provides a cloud-based travel commerce platform and APIs (including Travelport+, Smartpoint Cloud, and TripServices) that travel agencies such as OTAs, TMCs, consolidators, and leisure agencies use to search, book, service, and sell airline, hotel, car rental, and rail content. The company operates globally and has partnered with Anthropic and Cognizant to add AI capabilities to its travel retailing infrastructure.
Companies competing with Duffel for the same Google search keywords, organic and paid, via search-intersection analysis.
Companies House · registry record
View on Companies House ↗- Registered name
- DUFFEL HOLDINGS LTD
- Company number
- 14146139
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 1 Jun 2022
- Registered office
- Duo, Level 6, 280 Bishopsgate, London, EC2M 4RB
- Nature of business (SIC)
- 64209 — Activities of other holding companies n.e.c.
- Accounts
- last made up to 31 Dec 2024 · next due 30 Sept 2026
- Confirmation statement
- last made up to 31 May 2026 · next due 14 Jun 2027
Current officers · 1
- Zachary Austin Carson — director, appointed 1 Jun 2022
Source: Companies House public register · retrieved 24 Jul 2026. Contains public sector information licensed under the Open Government Licence v3.0.
In the news
Frequently asked questions
- What does Duffel do?
- Duffel provides APIs and software infrastructure that enable companies to offer flights and hotel bookings to their customers. The platform is designed for travel sellers, including airlines, hospitality businesses, and travel platforms seeking to integrate travel commerce capabilities.
- Who founded Duffel?
- Duffel was founded by Steve Domin in 2017.
- Who are Duffel's investors?
- Duffel's investors include Blossom Capital, Index Ventures, Kima Ventures, Y Combinator.
- Where is Duffel headquartered?
- Duffel is headquartered in London, GB.




